/**
* @static
*
* @param string $name
* @param Closure $func
* @param null|array $provided
*
* @return bool
* @throws TemplateSyntaxError
*/
public static function argsCheck($name, $func, $provided)
{
if (!is_array($provided)) {
$provided = array($provided);
}
$plen = count($provided);
list($args, $varargs, $varkw, $defaults) = py_inspect_getargspec($func);
// First argument is filter input.
py_arr_pop($args, 0);
if ($defaults) {
$nondefs = py_slice($args, null, -count($defaults));
} else {
$nondefs = $args;
}
// Args without defaults must be provided.
try {
foreach ($nondefs as $arg) {
py_arr_pop($provided, 0);
}
} catch (IndexError $e) {
// Not enough
throw new TemplateSyntaxError($name . ' requires ' . count($nondefs) . ' arguments, ' . $plen . ' provided');
}
// Defaults can be overridden.
try {
foreach ($provided as $parg) {
py_arr_pop($defaults, 0);
}
} catch (IndexError $e) {
// Too many.
throw new TemplateSyntaxError($name . ' requires ' . count($nondefs) . ' arguments, ' . $plen . ' provided');
}
return True;
}
public function __invoke()
{
$input_args = func_get_args();
$args_exp_ = py_inspect_getargspec(array($this->_obj, $this->_attr));
if (count($args_exp_[0]) > count($input_args)) {
// Naive check.
throw new TypeError();
// Simulate arguments required type error.
}
return call_user_func_array(array($this->_obj, $this->_attr), $input_args);
}